Is it perfectly absurd to believe that such a woman as this, impelled by these motives, and surrounded by these circumstances, would be capable of committing a crime—if the safe opportunity offered itself?

What does her own evidence say?

She admits that she had a conversation with Mrs. Eustace Macallan, in which that lady questioned her on the subject of cosmetic applications to the complexion. Did nothing else take place at that interview? Did Mrs. Beauly make no discoveries (afterward turned to fatal account) of the dangerous experiment which her hostess was then trying to improve her ugly complexion? All we know is that Mrs. Beauly said nothing about it.

What does the under-gardener say?

He heard a conversation between Mr. Macallan and Mrs. Beauly, which shows that the possibility of Mrs. Beauly becoming Mrs. Eustace Macallan had certainly presented itself to that lady’s mind, and was certainly considered by her to be too dangerous a topic of discourse to be pursued. Innocent Mr. Macallan would have gone on talking. Mrs. Beauly is discreet and stops him.

And what does the nurse (Christina Ormsay) tell us?

On the day of Mrs. Eustace Macallan’s death, the nurse is dismissed from attendance, and is sent downstairs. She leaves the sick woman, recovered from her first attack of illness, and able to amuse herself with writing. The nurse remains away for half an hour, and then gets uneasy at not hearing the invalid’s bell. She goes to the Morning-Room to consult Mr. Macallan, and there she hears that Mrs. Beauly is missing. Mr. Macallan doesn’t know where she is, and asks Mr. Dexter if he has seen her. Mr. Dexter had not set eyes on her. At what time does the disappearance of Mrs. Beauly take place? At the very time when Christina Ormsay had left Mrs. Eustace Macallan alone in her room!

Meanwhile the bell rings at last—rings violently. The nurse goes back to the sick-room at five minutes to eleven, or thereabouts, and finds that the bad symptoms of the morning have returned in a gravely aggravated form. A second dose of poison—larger than the dose administered in the early morning—has been given during the absence of the nurse, and (observe) during the disappearance also of Mrs. Beauly. The nurse looking out into the corridor for help, encounters Mrs. Beauly herself, innocently on her way from her own room—just up, we are to suppose, at eleven in the morning!—to inquire after the sick woman.

A little later Mrs. Beauly accompanies Mr. Macallan to visit the invalid. The dying woman casts a strange look at both of them, and tells them to leave her. Mr. Macallan understands this as the fretful outbreak of a person in pain, and waits in the room to tell the nurse that the doctor is sent for. What does Mrs. Beauly do?

She runs out panic-stricken the instant Mrs. Eustace Macallan looks at her. Even Mrs. Beauly, it seems, has a conscience!